Home / 10,344.36-15,513.30-5,411.40

Finding the Fourth Proportional to 10,344.36, 15,513.30 and 5,411.40

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Solution

The fourth proportional to 10,344.36, 15,513.30 and 5,411.40 is: 8,115.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,344.36 : 15,513.30 = 5,411.40 : x
  2. Step 2: Convert to fraction form
    10,344.36/15,513.30 = 5,411.40/x
  3. Step 3: Cross multiply
    10,344.36x = 15,513.30 × 5,411.40
  4. Step 4: Simplify right side
    10,344.36x = 83,948,671.62
  5. Step 5: Solve for x
    x = 83,948,671.62/10,344.36
  6. Step 6: Final answer
    x = 8,115.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.